JPH04327244A - Corduroy and production thereof - Google Patents

Abstract

PURPOSE:To provide a corduroy free from the separation of fibers and from the splitting of the back surface thereof and having excellent flexibility by employing pile yarns and/or ground yarns which contain latent crimpable acrylic conjugate fibers in a specific ratio. CONSTITUTION:Yarns containing side-by-side type or sheath-core type latent crimpable acrylic conjugate fibers in an amount of >=50% are employed as pile yarns and/or ground yarns to form a web having a corduroy tissue. The web is dyed with a liquid flow dyeing machine, and the pile yarns in the floated tissue are sheared to vale the web. By the thermal treatment in the dyeing process, etc., the latent crimping of the conjugate fibers constituting the pile yarns and/or the ground yarns are generated to surely fix the pile yarns with the ground yarns in the shrunk state.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to corduroy used for outer clothing, etc., and a method for manufacturing the same.

0002

[Prior Art] Corduroy is a strong and durable fabric made of cotton with perpendicular cut stripes expressed by weft threads made of a special structure, and is a type of typical cotton fabric. It has been well known and widely used since ancient times. Although this cotton corduroy has many advantages as mentioned above, it has drawbacks such as shrinkage during washing and color fastness, and as the development of thermoplastic synthetic fiber materials progresses,
Many proposals and attempts have been made to commercialize corduroy using synthetic fibers as pile material.

0003

[Problems to be Solved by the Invention] However, corduroy made from synthetic fibers is effective in preventing shrinkage during washing, improving color fastness, and improving strength, which are the drawbacks of cotton corduroy. The pile tends to shed, and especially when dyeing fabrics, the pile falls off significantly and the pile becomes insufficiently ridged, causing back cracks and other problems that impair the appearance of the corduroy product. In addition, synthetic fibers have many problems such as their high fiber strength, which makes it difficult to cut the pile, resulting in uneven pile surfaces and loss of commercial value.

[0004] Furthermore, the above-mentioned tendency for hair to fall out of the pile not only poses a problem for the product, but also causes filter clogging in the jet dyeing machine, requiring unnecessary time to be spent on maintenance, which reduces production. There are also issues in terms of gender.

[0005] The present invention has solved these problems and aims to provide a corduroy that eliminates the disadvantages of synthetic fibers while retaining its advantages.

[0006]

[Means for Solving the Problems] The present invention provides a corduroy in which thermoplastic synthetic fibers are used for the pile yarn and/or the base yarn, in which the base yarn and the pile yarn constituting the corduroy exhibit latent crimp. The first corduroy is a corduroy that is firmly contracted and fixed by conjugate fibers, and 50% or more of the constituent fibers of the ground yarn and/or pile yarn are composed of acrylic conjugate fibers.
In the method for manufacturing corduroy using thermoplastic synthetic fibers as pile yarn and base yarn, the corduroy has 50% or more of acrylic conjugate fiber as base yarn and/or pile yarn constituting the corduroy. The second aspect is a method for manufacturing corduroy, which is characterized in that a heat treatment is performed after forming the fabric.

[0007] The present invention will be explained in detail below along with its operation with reference to the drawings. Figure 1 shows an example of the corduroy of the present invention in which conjugate fiber yarns are used for both the ground yarn and the pile yarn.
indicates the weft, and 3 indicates the pile. Fig. 2 shows the state of the fabric before pile formation, in which the warp yarn 1 forms the ground yarn part together with the weft yarns 2 and 2', and the loop yarns 4 of the floating structure are arranged on the weft yarns 2 and 2'. is cut and pile 3
is formed.

In the corduroy of the present invention, acrylic conjugate fiber yarn is used for any or all of the warp yarns 1, weft yarns 2, 2', and loop yarns 4 constituting the ground yarn portion.

When acrylic conjugate fiber yarn is used for both the base yarn and the pile, the tightness between the base yarn and the pile is strong, there is no hair shedding during dyeing, and the pile is ridged well. As a result, it has a dry texture. In addition, when acrylic conjugate fiber yarn is used only for the base yarn, there is no shedding during dyeing and a pile with a soft texture can be obtained.

[0010] The fiber form of the conjugate fiber is as follows:
Either side-by-side type or sheath-core type may be used, and when using acrylic conjugate fiber, the fiber yarn may be acrylic conjugate fiber 10
Although it may be 0% or mixed with other fibers, it is necessary that 50% or more of the acrylic conjugate fibers be mixed in the entire yarn constituting the corduroy. If it is less than 50%, the heat shrinkage force during heat treatment will be poor, and the effect of preventing hair from falling out of the pile will be insufficient.

[0011] The fibers to be mixed are not particularly limited, but from the viewpoint of dyeability, acrylic fibers made of the same material are preferred.

Next, a method for manufacturing corduroy according to the present invention will be described. As the ground thread, the warp 1 that constitutes the ground thread part is used.
, or the wefts 2, 2', or both of them can be made of acrylic conjugate fiber yarn. When an acrylic conjugate fiber yarn is used for the pile 3, the conjugate fiber yarn is not necessarily required for the warp 1 or the weft 2, 2'.

As mentioned above, the fiber form of the conjugate fiber may be either side-by-side type or sheath-core type. Furthermore, the yarn using this conjugate fiber may be 100% conjugate fiber or may be mixed with other fibers, but the yarn constituting the corduroy as a whole contains 50% acrylic conjugate fiber. % or more must be mixed. 50
If it is less than %, the heat shrinkage force during heat treatment will be poor, and the effect of preventing pile hair from falling out will be insufficient.

[0014] As the ground weave, plain weave or twill weave is used as in the production of general corduroy. There are no particular limitations on the pile weft 4, and for example, three or more floating wefts may be used as in the normal case using threads of the same standard as the wefts 2 and 2' that make up the ground texture. After weaving, dyeing is applied, and the loop threads 4 of the floating structure are sheared to form ridges. The number of ridges depends to some extent on the number of wefts in the fabric, and also on the ratio of pile weft to ground weft.

It is also possible to prevent pile shrinkage and puncture by applying glue to the back of the fabric to facilitate cutting operations.

[0016]

[Function] In the corduroy of the present invention, since conjugate fibers are used for piles, etc., the pile wefts are woven together with the warp of the ground yarn as a floating structure, and then heat treatment is applied to reduce the potential of the conjugate fibers. The crimp develops, and the pile and ground yarn are firmly fixed in a crimped state, making it difficult for the pile to come out.

[0017]

【Example】

(Example 1) As the warp of the ground yarn 100% acrylic conjugate fiber 2/52M. C. As the weft of the ground thread
〃
1/40M. C. As a weft for pile
1/40M. C. Using the spun yarn of
1.7), the fabric was woven into the corduroy tissue shown in Figure 2, sheared and ridged, and then dyed using a liquid jet dyeing machine. As a result, there was almost no shedding during dyeing, and the pile was not ridged. It was good.

(Example 2) As the warp of the ground yarn 100% acrylic conjugate fiber 2/68M. C. As the weft of the ground thread
〃
1/52M. C. 100% acrylic regular fiber as weft for pile
1/48M. C. As a result of performing the same treatment as in Example 1 using the spun yarn of , the shedding during dyeing was significantly reduced, the pile was well ridged, and a soft texture was obtained.

(Comparative Example) The spun yarn and pile yarn made of 100% regular acrylic fiber were as follows:
There was a lot of hair loss during dyeing, and the pile moved to the back side, causing back cracks. In addition, when shrinkage yarn is used instead of conjugate fiber, hair loss occurs during dyeing if a yarn with a low shrinkage rate is used, and when a high shrinkage yarn is used,
Hair loss during staining was reduced, but the tissue became denser and
The texture and drapability were poor.

[0020]

[Effects of the Invention] As is clear from the above explanation, the corduroy of the present invention, despite being made of synthetic fibers, does not shed hair more than cotton products and does not cause back splitting, and is more similar to cotton products. It is an excellent product that shows no change in form or decrease in color fastness due to shrinkage before and after washing.

Furthermore, since acrylic fibers are used, the flexibility peculiar to corduroy is not impaired, and great effects can be obtained, such as excellent dyeability.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an example of the corduroy of the present invention.

FIG. 2 is a cross-sectional view of a corduroy fabric before pile formation.

[Explanation of symbols]

1 Warp 2, 2’ Weft for ground yarn 3 Pile 4 Weft for pile

Claims (2)

[Claims] [Claim 1] Thermoplastic synthetic fibers are made of pile yarn and/or
Or, in a corduroy used for ground yarn, the ground yarn and pile yarn that make up the corduroy are firmly contracted and fixed by conjugate fibers that have latent crimp, and the constituent fibers of the ground yarn and/or pile yarn are 50% of
The above is a corduroy characterized by being made of acrylic conjugate fiber. [Claim 2] The thermoplastic synthetic fiber is made of pile yarn and/or
Or, in a method for producing corduroy used for the ground yarn, heat treatment is performed after forming a fabric using yarn having 50% or more of acrylic conjugate fibers as the ground yarn and/or pile yarn constituting the corduroy. A corduroy manufacturing method characterized by: